Home / 25,820.80-38,730.40-7,352.80

Finding the Fourth Proportional to 25,820.80, 38,730.40 and 7,352.80

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Solution

The fourth proportional to 25,820.80, 38,730.40 and 7,352.80 is: 11,028.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,820.80 : 38,730.40 = 7,352.80 : x
  2. Step 2: Convert to fraction form
    25,820.80/38,730.40 = 7,352.80/x
  3. Step 3: Cross multiply
    25,820.80x = 38,730.40 × 7,352.80
  4. Step 4: Simplify right side
    25,820.80x = 284,776,885.12
  5. Step 5: Solve for x
    x = 284,776,885.12/25,820.80
  6. Step 6: Final answer
    x = 11,028.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.